FR2226368A1 - Biological purificn of waste water and sewage - for small communities by total oxidn. process - Google Patents

Biological purificn of waste water and sewage - for small communities by total oxidn. process

Info

Publication number
FR2226368A1
FR2226368A1 FR7314087A FR7314087A FR2226368A1 FR 2226368 A1 FR2226368 A1 FR 2226368A1 FR 7314087 A FR7314087 A FR 7314087A FR 7314087 A FR7314087 A FR 7314087A FR 2226368 A1 FR2226368 A1 FR 2226368A1
Authority
FR
France
Prior art keywords
oxidn
waste water
sewage
aeration
total
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR7314087A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Etudes et Constructions Mecaniques SA
Original Assignee
Etudes et Constructions Mecaniques SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Etudes et Constructions Mecaniques SA filed Critical Etudes et Constructions Mecaniques SA
Priority to FR7314087A priority Critical patent/FR2226368A1/en
Publication of FR2226368A1 publication Critical patent/FR2226368A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/1236—Particular type of activated sludge installations
    • C02F3/1263—Sequencing batch reactors [SBR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/234—Surface aerating
    • B01F23/2342—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force
    • B01F23/23421—Surface aerating with stirrers near to the liquid surface, e.g. partially immersed, for spraying the liquid in the gas or for sucking gas into the liquid, e.g. using stirrers rotating around a horizontal axis or using centrifugal force the stirrers rotating about a vertical axis
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/006—Water distributors either inside a treatment tank or directing the water to several treatment tanks; Water treatment plants incorporating these distributors, with or without chemical or biological tanks
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/14—Activated sludge processes using surface aeration
    • C02F3/16—Activated sludge processes using surface aeration the aerator having a vertical axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Microbiology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

Biological purifcn. process is intended for waste water and sewage coming from small and medium sized communities. It is of the total oxidation (or extended aeration) type in which the crude effluent is admitted directly into an oxidn-settlement tank; this is equipped with a floating turbine which stirs and homogenises the medium with an intense introduction of oxygen. This causes direct oxidn. and allows the aerobic bacteria to live and multiply. After the aeration phase, the turbine is stopped to allow settlement to take place; the sludge falls to the bottom and the upper layer rapidly becomes limpid; it is evacuated through an automatic overflow valve. After the evacuation of the purified water, the valve closes and the plant is ready for a new aeration cycle.
FR7314087A 1973-04-18 1973-04-18 Biological purificn of waste water and sewage - for small communities by total oxidn. process Withdrawn FR2226368A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7314087A FR2226368A1 (en) 1973-04-18 1973-04-18 Biological purificn of waste water and sewage - for small communities by total oxidn. process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7314087A FR2226368A1 (en) 1973-04-18 1973-04-18 Biological purificn of waste water and sewage - for small communities by total oxidn. process

Publications (1)

Publication Number Publication Date
FR2226368A1 true FR2226368A1 (en) 1974-11-15

Family

ID=9118175

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7314087A Withdrawn FR2226368A1 (en) 1973-04-18 1973-04-18 Biological purificn of waste water and sewage - for small communities by total oxidn. process

Country Status (1)

Country Link
FR (1) FR2226368A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372774A2 (en) * 1976-12-06 1978-06-30 Cersoaf Horizontal rotary turbine disc to aerate waste water - has air intake holes through disc into suction space behind each blade

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372774A2 (en) * 1976-12-06 1978-06-30 Cersoaf Horizontal rotary turbine disc to aerate waste water - has air intake holes through disc into suction space behind each blade

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Legal Events

Date Code Title Description
ST Notification of lapse